label Mathematics
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schedule 1 Day
account_balance_wallet \$5

Sep 10th, 2015

1. There will only be 2 chances, the dollar will become smaller or bigger. Why?
Because in mathematical rules of rounding off numbers:
number below 5 will be round down and 5 and up will be rounded up.
For example:
You have a bill of \$6.79  since the number next to the decimal point in the right is 7, it will be rounded up to \$7.
But if your bill is \$6.25, it will be rounded down to \$6.00

2. The larger lines with numbers are centimeters, and the smallest lines are millimeters. Since millimeters are 1/10th of a centimeter, if you measure 7 marks after a centimeter, it is 1.7 centimeters long.

3. There are two ways of describing, or specifying the members of, a set. One way is by intensional definition, using a rule or semantic description:

A is the set whose members are the first four positive integers.
B is the set of colors of the French Flag

The second way is by extensionâ€“ that is, listing each member of the set. An extensional definition is denoted by enclosing the list of members in curly brackets:

C = {4, 2, 1, 3}
D = {blue, white, red}.
One often has the choice of specifying a set either intensionally or extensionally. In the examples above, for instance, A = C and B = D

Sep 10th, 2015

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Sep 10th, 2015
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Sep 10th, 2015
Nov 25th, 2017
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